baber/WOPTO huggingface dataset:
Patent GB-594953-A (GB)
Title: Filtering method and apparatus
IPC: B01D33/067
Filed: 1944-08-08
Abstract: 594,953. Filters. PETERSON, C. L., and PETERSON, C. J. Aug. 8, 1944, No. 15052. [Class 46] Liquid to be filtered is supplied to a chamber formed by two rotating filtering drums D, D<SP>1</SP>, Figs. 1 and 2, and side plates 53, the drums, which are in contact with each other, being provided with radial sections formed by partitions 20 extending from the vicinity of the centre of each drum to the circumference, and a pressure medium being applied to the sections near the line of tangency to expand the filtering medium thereat and prevent or reduce leakage of the liquid B. The sections of each drum are connected by ports 21 with a valve 22 having connections 23, 24, 25 for low vacuum, high vacuum and compressed air or steam, respectively. With the drums in the position shown, section 12 of drum D is subjected to pressure, section 14 to neither pressure or vacuum, and sections 16, 18 to low vacuum. The sections of drum D<SP>1</SP> are similarly affected as they come into similar positions. The filter cake formed on the drums is washed by means of spray pipes 43 near to which the sections are subjected to high vacuum. Spray pipes 63 are also provided. The filter cake is removed by scrapers S. A drip pan 56 is provided to collect any liquid that may leak from the space above the drums. The liquid to be filtered is uniformly distributed along the chamber above the drums by means of a spreading plate, a well and an overflow trough. The filtering medium is secured to the drums by means which include straps 39 extending around the drums, the straps of one drum being staggered with respect to the straps of the other drum. In a. modification shown in Fig. 6 the drum D only is a filter drum, the drum R being imperforate. This drum acts as an overflow to provide a constant depth of liquid above the drums.
Patent GB-563717-A (GB)
Title: Improvements in or relating to apparatus for handling material in sheet form, for example, metal sheets
IPC: B21B39/04
Filed: 1942-10-27
Abstract: 563,717. Sheet-handling apparatus. NORTHERN ALUMINIUM CO., Ltd., and THORNELY, B. N. H. Oct. 27, 1942, No. 15082. [Class 78 (i)] [Also in Group XXII] Apparatus for handling metal sheets &c., e.g. in rolling mills, comprises an endless band conveyer 1 driven by a motor 8 and disposed to receive the sheets on emergence from between a pair of pinch rolls 2, 3. Located on each side of the conveyer 1 are means for raising the sheets to an elevated inclined position from which they ride down by gravity to reach a set of supporting rollers 16 forming a platform 15. An adjustable stop 17 determines the final position of the sheets, which can be raised manually by the operator from the platform 15 and re-inserted in the rolls 2, 3 or otherwise disposed of. The elevating and tilting means consist of two pairs 10 of endless chains, arranged on each side of the conveyer 1 with one pair, of full height, at the head of the machine and the other pair, of less height, toward the roll end of the machine. The chains 10 pass round pinions 11 so that each chain follows a closed vertical path at one side and end of the conveyer 1, the plane of each path being at right angles to the length of the conveyer. The chains 10 are furnished with outstanding brackets which support beams 13 running lengthwise of the conveyer 1 and furnished with anti-friction rollers 14. The four bottom sets of pinions 11 are driven at uniform speed by an electric motor with gearing and shafting 22 so that the beams 13, after having been raised horizontally till they reach the level of the top of the lower pair of chains 10, continue to be raised at their head end and so assume an inclined disposition which permits the sheets to slide. The apparatus may be set in motion either by operator control or automatically, and stops may be provided to prevent undesired movement of the sheets while being raised:
Patent GB-1516425-A (GB)
Title: System for measuring irradiation doses intended for use in radiotherapy apparatus
IPC: H05G1/54
Filed: 1976-04-13
Abstract: 1516425 Automatic control CGR-MeV 13 April 1976 [16 April 1975] 15145/76 Heading G3N [Also in Division G1] A radiation dose control system comprises first and second measuring chains (subscripts A and B); means (T A , T B ) to control cut-off of a source S and means (D 2 ) for selectively delaying one chain (e.g. by resistance RB 1 in chain B) whereby the other chain (e.g. A) becomes a principal chain for cut-off control, while the delayed chain will control cut-off if the principal chain is defective. Of two substantially identical chains, a chain A, selected as principal by the short-circuiting of a resistor R A1 , integrates current responsive to a first ionization chamber KA. Each time the integral voltage VAS represents a unit increment of dose it triggers a threshold circuit PA to advance a counter QA and simultaneously to discharge an integrating capacitor CA through a switch I A . At a pre-selected count a system TA is signalled to cut off the source S (e.g. a particle accelerator). If the principal chain A is faulty, the chain B, integrating less rapidly via an extra resistor R B1 , will trigger the source cut-off a little later than chain A would have done, indicating cut-off with a lamp ARR, B. A lamp WA, connected across ARR, B by a switch element D 2 /13, is also illuminated to indicate that the delayed chain B has acted, therefore that chain A is faulty. The switch D 2 , arranged to interchange the roles of chains A and B, may be operated either manually or automatically, e.g. a a predetermined number of doses, so that a chain, which may have gone faulty while it was in the secondary state, will be detected as soon as it is made the principal chain.
Patent GB-403015-A (GB)
Title: A method of manufacturing impregnated textile belting
IPC: B29D29/00
Filed: 1933-05-25
Abstract: 403,015. Compound fabrics. ABRAHAMSEN, A., and HANSEN, J. E., Lillesand, Norway. May 25, 1933, No. 15184. [Class 140.] Driving and conveyer belting consisting of several superposed layers of fabric coated with an aqueous dispersion of rubber, balata, or gutta percha, is stretched and calendered while in a moist condition. Fabric from a roll 1 is coated with latex &c. by passing under a guide 5 in a vessel 3 and over scrapers 6, and wound over drums 7 and 8 to form an endless belt of superposed layers. The belt is stretched while running over the drums by pulling the drum 8 in the direction 9, and finally calendered by rollers 11 and 12. The chamber 10 is heated during stretching, and, after calendering, is heated further to vulcanise the rubber. Alternatively, lengths of fabric coated with rubber dispersions may be superposed, partially dried, and stretched on a support, then fastened round drums 7, 8, stretched, and calendered. A belt with one uncoated side may be produced by coating the first layer on one side only by means of the roller 12 dipping in a bath 13 of latex. Concentrated, diluted, or vulcanised dispersions may be used.
Patent GB-496721-A (GB)
Title: Process for the removal or conversion of one or more of the constituents of a gaseous mixture
IPC: C10K3/00
Filed: 1937-06-01
Abstract: 496,721. Electrolysis; gas-purifying processes. GAS LIGHT & COKE CO., and DUDDEN, W. R. June 1, 1937, No. 15187. [Class 41] [Also in Group XII] Impurities such as nitric oxide or hydrogen sulphide in town gas or sulphur dioxide in waste flue gas are removed or converted by bringing the gas preferably at atmospheric temperature and pressure into contact with the anode of an electrolytic cell at which oxygen is being evolved. A voltage not greater than 5 is applied across the cell. A lead anode may be employed in a dilute solution of sulphuric acid or sodium sulphate, an iron or nickel anode in a dilute solution of caustic soda, or a platinum anode in any of these baths. In the apparatus shown in Fig. 1, the anode consists of a platinum wire 11 wound over a porous fireclay pot 7 containing sulphuric acid (5 per cent by volume) and enclosing a lead cathode 10. Coal gas is fed upwards through a passage formed by a glass spiral 8 mounted between the pot 7 and the container 1. Electrolyte percolating through the pot 7 leaves by a liquid seal 9 provided with a vent 13. The apparatus shown in Fig. 3 comprises lead pipes 41, 42 separated by insulators 43, 44, and packed with lead wool separated into two parts by a layer of porous asbestos or coarse sand 47 to form the electrodes, the anode mass 46 being supported on a spring-pressed perforated plate 48. A small stream of 10-25 per cent sulphuric acid is introduced by a pipe 51 and a faster stream of water by a pipe 52 ; the liquid percolating through the electrodes overflows at 55. The gas is passed downwardly through the cell. Lead nitrate is formed at the anode and reacts with the electrolyte to form lead sulphate and nitric acid. The process may be applied to the quantitative determination of nitric oxide in town gas, a platinum anode being employed in this case and the nitrogen peroxide produced determined with Griess reagent. The Provisional Specification describes also an apparatus similar to that shown in Fig. 1 in which the gas passage is formed solely by a spiral anode fitted closely between the porous pot and the container.
Patent GB-605566-A (GB)
Title: An improved holder for razor blades
IPC: B65D83/10
Filed: 1945-06-15
Abstract: 605,566. Shaving-accessories. NEWTON, G. T. June 15, 1945, No. 15222. [Class 131] A holder for wafer t y p e razor blades comprises a clip member on a carrier member hinged to the top of a container for oil or other protective fluid so that the clip member and blade or blades can be lowered into the fluid. In one form a coiled spring e is mounted upon a U-shaped member d secured to the inside of the hinged lid of the container a. In a modification, a number of separate members each bearing a clip for a blade are hinged to the rear wall of the container below the hinged lid: A deflector plate h or other means may be provided so that fluid draining from the blade or blades is returned to the container.
Patent GB-412399-A (GB)
Title: Improvements in and relating to liquid meters
IPC: G01F3/16
Filed: 1933-05-26
Abstract: 412,399. Reciprocating-pumps. BENSON, H. A., 53, Merton Avenue, Hillingdon, Middlesex, and NUMETER CO., Ltd., 104, High Holborn, London. May 26, 1933, No. 15283. [Class 102 (i).] A gas or liquid meter comprises a pair of chambers separated by a piston or diaphragm and containing snap-action devices for actuating distributing valves, said devices comprising a spring stressed and moved over a dead centre by the piston or diaphragm. The apparatus may be used as a pump by driving the piston from a source of power. In the form shown, a piston 7 separates chambers 4, 5 and its motion operates valves 11, 12 through devices each comprising a lever 26, link 30 and spring 28. The extent of movement of the lever 26 is varied by adjustable stops 32, and that of the piston by an adjustable stop 33 and a stop 36 adapted to actuate a counter 47.
Patent GB-184617-A (GB)
Title: Improvements in or connected with apparatus for indicating flow or excess of a predetermined pressure of liquid in pipes
IPC: A62C37/50
Filed: 1921-06-02
Abstract: 184,617. Huggett, A. J. June 2, 1921. Measuring-apparatus. - Means for indicating flow or excess pressure in pipes comprises a casing with an inlet 2, Fig. 2, covered by a cap 4 on a spindle 6 with a weighted arm 8, Fig. 1. The cap 4 is moved by the excess pressure or flow to bring the weighted arm past the perpendicular. During the subsequent fall of the arm, a block 10 acts on one end of a lever 13 to remove it from engagement with a contact, which is then moved by a spring to complete the electrical circuit of an alarm and indicator.
Patent GB-1219189-A (GB)
Title: Method of manufacturing an alloyed semiconductive diode
IPC: H01L29/861
Filed: 1968-03-29
Abstract: 1,219,189. Semi-conductor diodes. TRW SEMICONDUCTORS Inc. 29 March, 1968 [16 May, 1967], No. 15339/68. Heading H1K. A low voltage avalanche diode exhibiting reduced dynamic resistance and leakage current is made by forming an alloyed junction and then heating the junction to above 900‹ C. and then cooling at a rate of at least 200‹ C./minute to below the eutectic temperature. In the embodiment aluminium in the form of a ball, wire or piece of foil is placed on an N-type silicon wafer, heated rapidly to above the aluminiumsilicon eutectic temperature but below 900‹ C. and then cooled to below the eutectic at not more than 25‹ C. per minute. After further cooling to room temperature and removal of excess alloy the wafer is reheated at more than 50‹ C./minute to above 900‹ C. and then cooled at a rate of at least 200‹ C. per minute to below the eutectic temperature. The device is then completed and encapsulated in conventional manner.
Patent GB-529184-A (GB)
Title: Improvements in intermittent driving gear for glass forming machines
IPC: C03B35/12
Filed: 1939-05-24
Abstract: 529,184. Glass manufacture; toothed gearing. MITCHELL, W. B. May 24, 1939, No. 15377. [Class 56] [Also in Group XXIV] A device for rotating intermittently a part of a glass-forming machine comprises a differential gear interposed between a continuouslyrotating shaft and a shaft to be driven intermittently, and cam-operated means for oscillating the casing of the differential gear to cause a cyclical variation of the speed of the driven shaft. The device comprises a shaft 2, Fig. 1, continuously rotated and provided with a bevel wheel 5 which drives another bevel wheel 5a on a shaft 7 through differential pinions 6a that rotate on a pin 6c carried by the casing 6 of the gear. The casing is rotatable on the shafts 2 and 7 and is provided with an arm 14, Fig. 2, which is connected to a pivoted lever 13. This lever is oscillated by a cam 12 fixed to the shaft 2, the lever being kept in contact with the cam by a fluid-pressure cylinder 15a. The cam oscillates the casing 6, and the shape of the cam is such that periodically the rotation of the shaft 7 stops and is then accelerated and stopped again for each revolution of the shaft 2. The shaft 7 may be used to enable the mould table of a forming-machine to be rotated stepby-step by an electric motor. The construction shown in Fig. 1 is used to rotate a take-off device for removing finished glass articles 10 from the finishing moulds and deposit them on a conveyer. The device comprises a number of radial arms 8a fixed to the upper end of a vertical shaft 7a driven by the shaft 7. Levers 18, pivoted at 18a to an arm 8a, carry grippers 8 which are caused to close and open by contact with studs 19 when the levers are raised and lowered by rods 20a actuated by a stationary cam 21.
Patent GB-640898-A (GB)
Title: Improvements in or relating to gang tuning means for electron discharge apparatus
IPC: H01J25/12
Filed: 1942-10-09
Abstract: 640,898. Adjusting radio apparatus. SPERRY CORPORATION. Oct. 9, 1942, No. 15395/44. Convention date, Oct. 23, 1941. Divided out of 640,895, [Group XL (a)]. [Class 40 (v)] [Also in Group XL (a)] An electron discharge device has a plurality of cavity resonators which are gang-tuned by the movement of a single cantilever member which acts simultaneously, and preferably with different mechanical advantages, upon the motion-transmitting means going to the separate resonators. In one form, the cantilever beam 141, Fig. 3, is mounted upon the buncher resonator 79 of a frequency-multiplier klystron and acts upon movable struts 149, 137 which engage respectively fixed base member 97 and flange 109 secured to a portion 89 of the harmonic catcher resonator. Fixed struts 103, 106<SP>1</SP> engage base 97. When the cantilever is strained to the right by micrometer screw 142, resonator portion 79 tilts to the left under the action of strut 1.49, while resonator portion 89 moves to the right under the differential action of struts 149 and 137 ; this is because the bearing point of strut 137 is at a greater distance from the fulcrum 145 of the cantilever than the bearing point of strut 149, its rightward movement being thus greater than the leftward movement of the lever fulcrum. By adjusting the bearing point distances the relative movements of the resonator portions (which are flexibly mounted relative to the remaining portions of the resonators) are made in the desired ratio to keep both resonators in tune. In another form, toggle struts 1041, 107<SP>1</SP> of different angle engage a vertically movable cantilever 121, Fig. 1, so that movement of the cantilever produces different movements of plates 105, 109 tuning respectively buncher resonator 79 and harmonic catcher resonator 85.
Patent GB-915577-A (GB)
Title: Process for the conversion of carbon and hydrocarbons
IPC: C10J3/80
Filed: 1959-05-05
Abstract: 915,577. Making gas. BELLINGA, J. May 5, 1959 [May 5, 1958], No. 15442/59. Drawings to Specification. Class 55 (2). A process for the intermittent production of combustible gases by treating solid, liquid or gaseous hydrocarbons with excess steam in a combustion zone includes the steps of circulating water through a first and a second heatexchanger in such a manner that the water is heated in the first heat-exchanger by direct or indirect heat-exchange with hot gases from the conversion zone and is directly contacted with a feed gas to be fed to the conversion zone, whereby the feed gas is heated and moistened, interrupting the flow of water into the second heat-exchanger during such time as the supply of the feed gas to the conversion zone is interrupted, and interrupting the flow of water into the first heat-exchanger during such time as the production of combustible gases in the conversion zone is interrupted. The Specification refers briefly to the conversion of natural gas, refinery gas and coke oven gas.
Patent GB-1261725-A (GB)
Title: Improvements relating to electric generators
Inventor: PUTTOCK MICHAEL CHARLES
IPC: H02K21/24
Filed: 1968-03-30
Abstract: 1,261,725. A.C. generators. EMI Ltd. 24 March, 1969 [30 March, 1968], No. 15453/68. Heading H2A. The stator of an A.C. generator includes a winding 5 concentric with the rotor axis and encased within an annular magnetic casing formed of an inner tubular part 7, an outer tubular part 8, and an annular end wall 9, the tubular parts 7 and 8 having, at one end, polepieces 10, 12 which, in the assembled machine, are directed radially outwards and inwards respectively. The tubular parts 7, 8 of the stator casing have tabs 11, 13 at their second ends which are bent down to hold the annular wall 9 in position. The casing may alternatively be manufactured from a single piece of steel by pressing or spinning. The generator has a planar air gap, the rotor comprising a ferrite permanent magnet disc 1 magnetized as shown in Fig. 3.
Patent GB-501914-A (GB)
Title: Apparatus for illumination in coal mines and other explosive atmospheres
IPC: F21V23/00
Filed: 1937-06-03
Abstract: 501,914. Supply systems for discharge lamps. FODOR, J. June 3, 1937, Nos. 15461 /37 and 15776 /38. ) [Class 38 (iv)] An illuminating arrangement for coal mines and other explosive atmospheres comprises a flame proof casing enclosing means for producing an electric field external to the casing and forming the sole means for energizing an electric discharge device. The casing may be self-contained as by the inclusion of a battery, or it may be supplied by induction from an external source of A.C. or from a high-frequency conductor or network or from electromagnetic waves. In Fig. 1 is shown an oscillatory circuit including a discharge device 1 supplied from a battery 4, the whole being enclosed in the flame proof casing 2. The luminous discharge device 6, preferably without internal or external electrodes, lies within the field due to the oscillatory circuit and its ends enter insulated sockets 9, 10, surrounded by metal parts 11, 12 connected to the oscillatory circuit. A reflector 13 and an outer transparent reinforced shield 14 may be provided: The discharge device 6 may be straight with metal external electrodes adjacent to, but separated by the wall of the casing from, conductive members connected to the oscillatory circuit. The flame proof casing 2, Fig. 2, may contain a high-frequency generator 25 supplied from A.C. mains 20 through an inductive coupling and a divided core 22, 23. The casing containing the part 22 of the core may be hinged to casing 2 and the inductive coupling effect modified by adjusting it about the hinge. The casing may be of part cylindrical form protected by outer cylindrical rotatable cover having a glass window therein. A distributive system may include a number of flame proof casings each with an illuminating discharge lamp supplied from conductors through inductive couplings, the conductors being in lengths inductively coupled to one another. The casing 60, Fig. 7, with means for producing an electric field may be supplied from a highfrequency source 50 through an earthed conductor 51, the voltage of which is small, for example, one volt. To prevent sparking in the event of breakage of conductor 51, it is connected at several points to other earthed conductors 55, 56. The connection between the casing and conductor 51 may be a hook, which may he insulated. If the potential supplied from the high-frequency source is low, the supply conductors need not be earthed. The earthed distributing circuit. Fig. 9, which includes cross inductances, may itself be tuned to a high frequency so'that, should the wire be severed, the circuit may fall out of tune and the duration of any spark not be sufficient to. ignite explosive mixture. Electromagnetic waves guided in the desired direction by a conductor, the framework of a conveyer or the coal itself, may energize an oscillatory circuit in the flame proof casing through a collecting antenna also in the casing. Specifications 464,023 and 475,413 are referred to,
Patent GB-910066-A (GB)
Title: Improvements in or relating to a swimming toy
IPC: A63H13/12
Filed: 1961-04-28
Abstract: 910,066. Toys. LUCAS, L., and LE VAUX, R. G. April 28, 1961 [May 14, 1960], No. 15545/61. Class 132 (3). A swimming toy comprises a body and head portion, arms and legs, a cross-shaft rotatably mounted on the front side of the body portion, means mounting the arms on the ends of the cross-shaft to extend 180 degrees apart for rotational movement with the cross-shaft at the axis, separate axles mounted for rotational movement on the front side of the body portion in crosswise alignment, means mounting the legs on the opposite end portions of the axles to extend downwardly from the body portion, and driving means in the body portion, an operative connection between the driving means and the cross-shaft for imparting rotational movement thereto, and another operative connection between the driving means and the axles for transmitting rotational movement from the driving means to reciprocating rotational movement of the axles whereby the legs are rocked back and forth with the axles as a pivot. A frame comprising members 24, 26 mounts the cross-shaft 22 carrying the arms 14, 16 at 180 degrees to each other and two axles 50 carrying the legs 18, 20. A driving pinion 32 driven by a spring 28 meshes with a pinion 34 on the cross-shaft to rotate the arms and meshes with a pinion 36 on a cross-shaft 38 to drive a pair of oppositely extending eccentrics 40, 42 having studs for pivotally connecting with links 46 which pivotally connect with rocker plates 48 on the axles 50 to rock the legs. Alternatively, for rocking the legs, the shaft 38 carries crank arms offset in opposite directions and having pins which engage in elongated slots in the links which connect directly with the axles. The feet 70 may pivot on pins 72 extending through an extension on the feet and engaging in a recess in the legs. Rubber washers 60 seal those points of hollow parts at which shafts or axles extend through to the outside.